Ultraviolet radiation is harmful to health. This article introduces the testing methods of textile ultraviolet protection and the attentive problems in testing.

紫外线辐射对人体有一定危害。介绍了纺织品紫外线防护性能的测试方法和测试中应注意的问题。

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However, there are gaps in scientific knowledge about exactly how colour interacts with other factors to influence a fabric's ability to block ultraviolet protection factor (UPF).

但是，关于颜色到底是怎样与其他因素作用来影响布料紫外线防护系数(UPF)的科学知识还存在一些缺口。

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However, there are gaps in scientifi c knowledge about exactly how colour interacts with other factors to infl uence a fabric’s ability to block ultraviolet protection factor (UPF).

但是，关于颜色到底是怎样与其他因素作用来影响布料紫外线防护系数（UPF）的科学知识还存在一些缺口。

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The result is a material that is not only waterproof but is able to block out UV radiation from the sun to such an extent that it would rate a Ultraviolet Protection Factor (UPF) of 101.15 if the chart went that high.

FORBES: Chinese Researchers Develop Waterproof Cotton

The reverse would be true if protection from ultraviolet light were the answer, since the canopy is sunnier than the understorey.

ECONOMIST: Young leaves, as well as old ones, are often coloured red